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Finding the Fourth Proportional to 186,616.88, 279,929.64 and 46,376.72

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Solution

The fourth proportional to 186,616.88, 279,929.64 and 46,376.72 is: 69,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,616.88 : 279,929.64 = 46,376.72 : x
  2. Step 2: Convert to fraction form
    186,616.88/279,929.64 = 46,376.72/x
  3. Step 3: Cross multiply
    186,616.88x = 279,929.64 × 46,376.72
  4. Step 4: Simplify right side
    186,616.88x = 12,982,218,533.98
  5. Step 5: Solve for x
    x = 12,982,218,533.98/186,616.88
  6. Step 6: Final answer
    x = 69,566.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.